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Submission #583150

# Submission time Handle Problem Language Result Execution time Memory
583150 2022-06-24T22:32:19 Z NintsiChkhaidze Sirni (COCI17_sirni) C++17
112 / 140
 5000 ms 435400 KB 
#include <bits/stdc++.h>
//#include <iostream>
//#include <vector>
#define s second
#define pb push_back
#define f first
using namespace std;

const int N = 100005,M = 10000005;
int p[N],ans,m[M];

vector <pair<int,pair<int,int> > >  edges;
vector <pair<int,int> > d;

int P(int x){
    if (x == p[x]) return x;
    return p[x] = P(p[x]);
}

void dsu(int a,int b,int c){
    int pa = P(a),pb = P(b);
    if (pa == pb) return;
    ans += c;
    if (pa < pb) swap(pa,pb);
    p[pb] = pa;
}

int main() {
    ios_base::sync_with_stdio(0),cin.tie(NULL),cout.tie(NULL);
    int n;
    cin>>n;
    for (int i = 1; i <= n; i++){
        int a;
        cin>>a;
        p[i] = i;
        d.pb({a,i});
    }

    sort(d.begin(),d.end());
    int r = d.size() - 1;
    m[10000001] = -1;
    for (int i = 1e7; i >= 1; i--){
        m[i] = m[i + 1];
        while (r >= 0 && i <= d[r].f)
            m[i] = r--;
    }

    for (int y = 0; y < n; y++){
        if (y + 1 < n && d[y+1].f < 2*d[y].f)
            edges.pb({d[y+1].f - d[y].f,{y,y + 1}});

        if (y > 0 && d[y].f == d[y - 1].f) continue;
        for (int j = 2*d[y].f; j <= 1e7; j += d[y].f){
            if (m[j] < 0) continue;
            if (d[m[j]].f - j < d[y].f)
                edges.pb({d[m[j]].f - j,{y,m[j]}});
        }
    }

    sort(edges.begin(),edges.end());
    for (int i=0;i<edges.size();i++){
        int x = edges[i].s.f,y = edges[i].s.s,c = edges[i].f;
        dsu(x,y,c);
    }
    cout<<ans;
}

Compilation message

sirni.cpp: In function 'int main()':
sirni.cpp:61:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |     for (int i=0;i<edges.size();i++){
      |                  ~^~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 39612 KB Output is correct
2 Correct 89 ms 42688 KB Output is correct
3 Correct 39 ms 39756 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 84 ms 39596 KB Output is correct
2 Correct 255 ms 40268 KB Output is correct
3 Correct 40 ms 39676 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 39580 KB Output is correct
2 Correct 38 ms 39488 KB Output is correct
3 Correct 40 ms 39616 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 277 ms 53732 KB Output is correct
2 Correct 906 ms 90600 KB Output is correct
3 Correct 375 ms 66044 KB Output is correct

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 75 ms 42880 KB Output is correct
2 Correct 578 ms 90568 KB Output is correct
3 Correct 344 ms 65868 KB Output is correct

Subtask #6
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 592 ms 90656 KB Output is correct
2 Correct 1178 ms 139820 KB Output is correct
3 Correct 344 ms 65972 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 221 ms 46432 KB Output is correct
2 Correct 1145 ms 139848 KB Output is correct
3 Correct 337 ms 65928 KB Output is correct

Subtask #8
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 251 ms 66004 KB Output is correct
2 Correct 4129 ms 435400 KB Output is correct
3 Correct 290 ms 66000 KB Output is correct

Subtask #9
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 248 ms 66120 KB Output is correct
2 Execution timed out 5108 ms 435332 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #10
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 68 ms 42820 KB Output is correct
2 Execution timed out 5110 ms 435352 KB Time limit exceeded
3 Halted 0 ms 0 KB -